Recent developments in geophysical techniques for the rapid location of near-surface anomalous ground conditions

McDowell, P.

Recent developments in geophysical techniques for the rapid location of near-surface anomalous ground conditions - 1981 - Ground Engineering April 1981, 20-23(4) .

Citation from CSM article `Detecting mineshafts using geophysical techniques` CSM:M 3(1) September 1993, 4-6. Stored on gallery.